21541400

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 53434080

約数和(自身を除く): 31892680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 41, 50, 71, 74, 82, 100, 142, 148, 164, 185, 200, 205, 284, 296, 328, 355, 370, 410, 568, 710, 740, 820, 925, 1025, 1420, 1480, 1517, 1640, 1775, 1850, 2050, 2627, 2840, 2911, 3034, 3550, 3700, 4100, 5254, 5822, 6068, 7100, 7400, 7585, 8200, 10508, 11644, 12136, 13135, 14200, 14555, 15170, 21016, 23288, 26270, 29110, 30340, 37925, 52540, 58220, 60680, 65675, 72775, 75850, 105080, 107707, 116440, 131350, 145550, 151700, 215414, 262700, 291100, 303400, 430828, 525400, 538535, 582200, 861656, 1077070, 2154140, 2692675, 4308280, 5385350, 10770700, 21541400]

約数ペア:

[(1, 21541400), (2, 10770700), (4, 5385350), (5, 4308280), (8, 2692675), (10, 2154140), (20, 1077070), (25, 861656), (37, 582200), (40, 538535), (41, 525400), (50, 430828), (71, 303400), (74, 291100), (82, 262700), (100, 215414), (142, 151700), (148, 145550), (164, 131350), (185, 116440), (200, 107707), (205, 105080), (284, 75850), (296, 72775), (328, 65675), (355, 60680), (370, 58220), (410, 52540), (568, 37925), (710, 30340), (740, 29110), (820, 26270), (925, 23288), (1025, 21016), (1420, 15170), (1480, 14555), (1517, 14200), (1640, 13135), (1775, 12136), (1850, 11644), (2050, 10508), (2627, 8200), (2840, 7585), (2911, 7400), (3034, 7100), (3550, 6068), (3700, 5822), (4100, 5254)]